10251+5328 ES  721AB

 
 
10h 25m 06.61s +53 28' 29.6" P.A. 138 sep 3.7 mag 9.97,13.50 Sp F8
 
 
Coord 2000
10251+5328
Discov num
ES  721
Comp
AB
Coord arcsec 2000
10 25 06.61 +53 28 29.6
Date first
1909
Date last
2015
Obs
5
Pa first
131
Pa last
138
P.A. Now (θ)
138°
Sep first
3.7
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
9.97
Mag sec
13.50
delta mag (ΔM)
3.53
Spectral class
F8 (yellow-white)
Pri motion ra
-028
Sec motion ra
Pri motion dec
-012
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
10251+5328 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 10251+5328 ES 721 AB 1909 2015 5 138 3.7 9.97 13.50 3.53 <===
Show 10251+5328 ES 721 AC 1903 2015 8 290 32.5 9.97 12.24 2.27
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
137.6
Precise sep
3.67
Constellation
Ursa Major
Tycho2
3816-01083-1
last precise pa
137.6
last precise sep
3.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
10251+5328 ES 721 AB 1998 2 122 3.4 9.97 13.50 F8 D 102506.61+532829.6
10251+5328 ES 721 AB 2002 4 138 3.7 9.97 13.50 F8 102506.61+532829.6
10251+5328 ES 721 AB 2015 5 138 3.7 9.97 13.50 F8 102506.61+532829.6

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